Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

World’s first demonstration of power transfer from wheels to power an electric car

05.12.2012
Electric vehicles (EV) have ten times higher energy performance than automobiles powered by gasoline-based engines.

However, they are not yet popular with drivers due to the need to store large batteries onboard. Now, Takashi Ohira and colleagues are developing an innovative method for powering EVs that drastically reduces the number of batteries.

Electric vehicles (EV) have ten times higher energy performance than automobiles powered by gasoline-based engines. EVs show tremendous potential as an effective solution to both energy shortages and global warming.

However, conventional battery-based EVs are not popular with drivers because of drawbacks including: (1) short cruising range; (2) long time to recharge; and (3) high cost. Now, assuming that these drawbacks stem from the need to store large batteries onboard cars, then there are strong demands for alternatives means of powering electric cars. In a novel approach, Takashi Ohira at Toyohashi University of Technology and colleagues are developing an innovative method for powering EVs that drastically reduces the number of batteries.

The approach exploits the steel belt usually embedded in rubber tires. The steel belt collects power excited from a pair of electrodes buried beneath the road surface. And, since the steel belt is electrically insulated by the rubber tread, the researchers used a displacement current at high frequency to penetrate from underground to the steel belt.

The researchers constructed a 1/32 scale EV to proof their concept for the electric car. The car moved successfully with a power penetration efficiency exceeding 75% at 52 MHz. This is the world-first demonstration of electric power transfer via the car-wheel to the vehicle.

“If the scheme is applied into practice, we believe it would enable a tremendous extension of the EV cruising range,” says Ohira.

Journal information

Authors: Y. Suzuki, T. Sugiura, N. Sakai, M.Hanazawa, and T. Ohira.
Title of original paper: Dielectric Coupling from Electrified Roadway to Steel-Belt Tires Characterized for Miniature Model Car Running Demonstration.
Journal, volume, pages and year: IEEE MTT-S International Microwave Workshop Series on Innovative Wireless Power Transmission, IMWS-IWPT2012, pp.35-38 (2012).
Digital Object Identifier (DOI): 10.1109/IMWS.2012.6215814
Affiliations: Department of Electrical & Electronic information Engineering.

Adarsh Sandhu | Research asia research news
Further information:
http://www.tut.ac.jp/english
http://www.researchsea.com

More articles from Power and Electrical Engineering:

nachricht Early Warning System for Dikes Passes Field Test
17.11.2014 | Siemens AG

nachricht Test runs started for the BorWin2 grid link
13.11.2014 | Siemens AG

All articles from Power and Electrical Engineering >>>

The most recent press releases about innovation >>>

Anzeige

Anzeige

Event News

Regional economic cooperation in Central Asia

21.11.2014 | Event News

Educating the Ecucators

13.11.2014 | Event News

36th Annual IATUL Conference 2015: Call for papers and posters

12.11.2014 | Event News

 
Latest News

Laser from a plane discovers Roman goldmines in Spain

21.11.2014 | Earth Sciences

Darwin 2.0

21.11.2014 | Life Sciences

Siemens Receives Power Island Order with H-class Turbine Technology in Ohio, U.S.A.

21.11.2014 | Press release

VideoLinks
B2B-VideoLinks
More VideoLinks >>>